by Mairead O'Mahony
The Perkins Brailler is a braille typewriter with a key corresponding to
each of the 6 dots of the braille code. It has a space key, a backspace key,
a line spacing key and a carry handle. It has 2 side knobs for advancing
paper through the machine and a carriage lever above the keys. When typing,
an audible bell sounds letting you know you are approaching the end of the
line.
Before the introduction of the Perkins Brailler, writing in braille was a
difficult process as braille dots were written using a stylus and slate or
by using complex machines available at the time. The Perkins Brailler was
developed in 1951 by David Abraham. He was dissatisfied with the existing
technology for writing braille and wanted to create an inexpensive and
reliable machine, which would allow people to write more easily in braille.
NCBI LABS Technology Newsletter.
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